Analysis

  • max time kernel
    148s
  • max time network
    168s
  • platform
    windows7_x64
  • resource
    win7-en-20210920
  • submitted
    25-10-2021 07:31

General

  • Target

    834e38185fb19b1adf58cc82aaf73e1e.exe

  • Size

    399KB

  • MD5

    834e38185fb19b1adf58cc82aaf73e1e

  • SHA1

    2a3bca9b936093f82a1be92737012e683a863a6a

  • SHA256

    8a2e1a0ade05db6ef7fdc307b058119e7d84c26b7a75495a4348e310d67f15e7

  • SHA512

    4fe755a20fcbf6ac5c1f4993489a9c00306908f4497d11d1d260aad6bf26dbb7cd7b86e14d0d15f2546267df8cd19b2765405a1ee446d8bd316aa11201f1e7c9

Malware Config

Extracted

Family

njrat

Version

v2.0

Botnet

------(Send)------

C2

new.libya2020.com.ly:2020

Mutex

Windows

Attributes
  • reg_key

    Windows

  • splitter

    |-F-|

Signatures

  • njRAT/Bladabindi

    Widely used RAT written in .NET.

  • Drops startup file 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious use of AdjustPrivilegeToken 23 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\834e38185fb19b1adf58cc82aaf73e1e.exe
    "C:\Users\Admin\AppData\Local\Temp\834e38185fb19b1adf58cc82aaf73e1e.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:528
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\dRjlsmRl" /XML "C:\Users\Admin\AppData\Local\Temp\tmpE917.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1328
    • C:\Users\Admin\AppData\Local\Temp\834e38185fb19b1adf58cc82aaf73e1e.exe
      "C:\Users\Admin\AppData\Local\Temp\834e38185fb19b1adf58cc82aaf73e1e.exe"
      2⤵
      • Drops startup file
      • Suspicious use of AdjustPrivilegeToken
      PID:1396

Network

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scheduled Task

1
T1053

Persistence

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Discovery

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/528-54-0x0000000001040000-0x0000000001041000-memory.dmp
    Filesize

    4KB

  • memory/528-56-0x0000000004C20000-0x0000000004C21000-memory.dmp
    Filesize

    4KB

  • memory/528-57-0x0000000000550000-0x0000000000557000-memory.dmp
    Filesize

    28KB

  • memory/528-58-0x0000000000E30000-0x0000000000E59000-memory.dmp
    Filesize

    164KB

  • memory/1328-59-0x0000000000000000-mapping.dmp
  • memory/1396-60-0x0000000000400000-0x000000000040E000-memory.dmp
    Filesize

    56KB

  • memory/1396-61-0x0000000000400000-0x000000000040E000-memory.dmp
    Filesize

    56KB

  • memory/1396-62-0x0000000000400000-0x000000000040E000-memory.dmp
    Filesize

    56KB

  • memory/1396-63-0x0000000000400000-0x000000000040E000-memory.dmp
    Filesize

    56KB

  • memory/1396-64-0x0000000000400000-0x000000000040E000-memory.dmp
    Filesize

    56KB

  • memory/1396-65-0x000000000040839E-mapping.dmp
  • memory/1396-66-0x0000000000400000-0x000000000040E000-memory.dmp
    Filesize

    56KB

  • memory/1396-68-0x00000000762D1000-0x00000000762D3000-memory.dmp
    Filesize

    8KB

  • memory/1396-69-0x0000000000790000-0x0000000000791000-memory.dmp
    Filesize

    4KB